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YS383 Diaper Side-Leakage Tester: How Lab Data Ends "Leakage Crises"?
I. Pain Point: 90% Leakage Issues Stem from "Invalid Simulation"
Common pitfalls in diaper lab testing:
❌ Static test trap: Traditional vertical pressure only (e.g., GB/T 28004.1), ignoring dynamic penetration from baby rolling/sitting.
❌ Single-liquid limitation: Pure water tests fail to simulate real urine composition (salts/urea affect wicking speed).
Consequence: One brand faced 23% return rate due to undetected thigh leakage!
II. How YS383 Replicates Real-World Scenarios?
▶ Dynamic Liquid Penetration Simulation SystemTriaxial control technology accurately recreates complex scenarios:
Scenario | Device Action | Precision |
Baby side-leakage | 30° tilt injection + lateral pressure | Angle control ±0.5° |
Intermittent urine jet | Pulsed peristaltic pump (bladder sim) | Flow rate ±0.1mL/pulse |
Thigh friction | Pneumatic module compresses cuffs | Pressure ±5Pa |
▲ Real-time "Liquid Diffusion Heatmap" (see sample image)
▶ Multi-Factor Fluid Library6 customizable body fluid simulants:
Fluid Type | Composition | Test Purpose |
Newborn urine | 1.8% urea + 0.6% NaCl | Anti-crystal clogging verification |
Diarrhea simulant | Starch emulsion (35cP) | Cuff seal integrity |
Hypertonic night urine | 2.5% K₂SO₄ | Rewet measurement |
III. 4-Step Design Optimization with Critical Data
Step 1: Identify Leak-Guard Cuff Failure Threshold
YS383 Operation:
Gradually adjust cuff pressure (5~50N);
Inject 50mL simulant at 30° tilt.
Optimization Basis: At pressure < 18N, 80% liquid breaches cuffs within 120s (increase elastic density/adjust adhesive points).
Step 2: Diagnose Distribution Layer Flaws
Data Comparison:
Design | Liquid-to-core time | Side-leak rate |
Traditional linear | 8.2s | 17% |
Y-shaped distribution | 5.1s | 4% |
Step 3: Validate Absorbent Core Saturation Balance
Key Metrics:Lateral wicking speed (Std: ≥3cm/10s)；Rewet (GB: ≤0.5g)
Failure Case: Uneven SAP distribution shown in heatmap → localized leakage.
Step 4: Material Compatibility Verification
Test 3-layer synergy:
Topsheet hydrophilicity (contact angle <70°)
Distribution layer basis weight (≥45g/m²)
Backsheet breathability (>800g/m²/24h)
▶ YS383 + Environmental Chamber: Test at 38°C/RH80% for 2 hours.
IV. How YS383 Cuts Costs & Boosts Efficiency?
▶ 50% Shorter R&D CycleCase: Elastic stretch rate optimized from 180% → 210% in 3 days via 200 auto-tests; leakage rate ↓12%→3%.
▶ 37% Lower Quality CostsMethod | Defect escape rate | Annual return cost |
Traditional | 8.5% | ¥2.3M |
YS383 simulation | 0.9% | ¥0.38M |
Auto-reports meet:
China: GB/T 28004.1-2021
EU: EN 14387
North America: EDANA ERT 150.0-02
V. Technical Highlights
Module | Innovation | Breakthrough |
Multi-angle platform | 0-90° tilt (pneumatic lock) | World's 1st sit/lie/crawl simulation |
Smart fluid ID | Conductivity + pH dual sensors | Auto fluid recognition & standard match |
Leak alert | Auto-stop when boundary liquid >5mL | Prevents lab contamination |
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